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Cushion|Lab Grown|IGI

4.15ct E FL Cushion Lab Grown Diamond

EX • E/FL • IGI LG811675428

Shape and cutting style on the report: Cushion modified brilliant

Certificate IGI LG811675428

Diamond specifications and retailer prices

From €5,332 EUR
CA$8,274 CAD
As of October 30, 2026
Save €23,536 EUR (82%) vs most expensive(unlock to see where)
21 retailers carry this diamond
Most expensive: €28,868 EUR at With Clarity · As of October 31, 2026
View at With Clarity

About this 4.15ct lab-grown cushion diamond

This 4.15ct lab-grown cushion sits in the three to five carat band, graded E colour (colourless) and FL clarity (flawless or internally-flawless), with a top-tier cut grade and certified by IGI LG811675428 or 811675428. Listed at 21 retailers as of October 30, 2026, with prices from €5,332 to €28,868, a €23,536 spread on the same certified stone. With Clarity lists it at €28,868. Lab-grown prices in the 2ct and up range have fallen 40 to 60% over the last 18 months. Use the cross-retailer spread above to find the lowest current listing.

The 4Cs

4.15
Carat
E
Color
FL
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.3°
Pavilion angle37.1°
OriginLab Grown
Grading LabIGI
CertificateIGI LG811675428
Dimensions11.33 × 8.46 × 5.62 mm
L/W Ratio1.34
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
11.33 mm8.46 mm4.15 ctE / FL
OriginLab Grown
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG811675428
Side View
Table 61.0%Crown 35.3°Girdle: MED-STKPavilion 37.1°Culet: NoneDepth 66.4%

Caratlytics Score

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A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 30
Current: €8,917 EUR|Low: €5,502 EUR|High: €14,661 EUR|Avg: €9,317 EUR|+2.3%
Retailer 1
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
Retailer 12
Retailer 13
Retailer 14
October 31, 2026
Retailer 14€5,699 EUR
Retailer 11€5,745 EUR
Retailer 2€5,766 EUR
Retailer 6€6,130 EUR
Retailer 7€6,517 EUR
Retailer 8€7,314 EUR
Retailer 4€8,089 EUR
Retailer 1€8,917 EUR
Retailer 13€9,629 EUR
Retailer 10€11,660 EUR
Retailer 9€12,130 EUR
Retailer 12€12,712 EUR
Retailer 3€14,653 EUR
Retailer 5€14,661 EUR

43 data points across 14 retailers

21 retailers€5,332 EUR to €28,868 EUR

A
Cheapest Retailer
-
€5,332 EUR
CA$8,274 CAD
Retailer 2
-
€5,699 EUR
$6,367 USD
View
Price last confirmed 15 days ago
A
Retailer 3
-
€5,706 EUR
$6,375 USD
View
A
Retailer 4
-
€5,745 EUR
$6,418 USD
View
A
Retailer 5
-
€5,766 EUR
$6,442 USD
View
A
Retailer 6
-
€6,130 EUR
$6,849 USD
View
A
Retailer 7
-
€6,517 EUR
$7,281 USD
View
Final sale: no returns
A
Retailer 8
-
€7,314 EUR
£6,434 GBP
View
A
Retailer 9
-
€8,089 EUR
£7,116 GBP
View
B+
Retailer 10
-
€8,917 EUR
View
B+
Retailer 11
-
€9,629 EUR
$10,758 USD
View
B+
Retailer 12
-
€11,660 EUR
£10,257 GBP
View
B+
Retailer 13
-
€12,130 EUR
ZAR 218,929 ZAR
View
B+
Retailer 14
-
€12,712 EUR
$14,202 USD
View
B+
Retailer 15
-
€13,892 EUR
$15,520 USD
View
Retailer 16
-
€14,653 EUR
$16,370 USD
View
Price last confirmed 38 days ago
B
Retailer 17
-
€14,661 EUR
$16,379 USD
View
B
Retailer 18
-
€15,334 EUR
$17,131 USD
View
B
Retailer 19
-
€15,851 EUR
$17,709 USD
View
B
Retailer 20
-
€20,179 EUR
$22,544 USD
View
Most Expensive
B
With Clarity
811675428 · Oct 31
€28,868 EUR
$32,252 USD
View
20 more retailers have this diamond
Prices start from €5,332 EURSave up to €23,536 EUR

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

A
4.15ct Cushion
€5,332 EUR